What follows is a part of the book Nahj al-Balagha, the most famous collection of sermons, letters, tafsirs and stories attributed to Imam Ali (A.S).
It was collected by Al-Sharif al-Radi, the Shiite scholar of the tenth century. Known for its eloquent content, it is considered as a masterpiece of literature in Shiite Islam, ranked third behind the Qur’an and prophetic narratives. This is the 82th Hadith of this book.
According to Shafaqna, Imam Ali (peace be upon him) said: I impart to you five things which, if you ride your camels fast in search of them, you will find them worth it.
No one of you should repose hope save in his Lord (Allah); no one of you should fear anything save his sin; no one should feel ashamed of saying “I do not know” when he is asked a matter which he does not know; no one should feel ashamed of learning a thing that he does not know; and you should practice endurance, because endurance is for belief what the head is for the body, so that just as there is no good in a body without the head there is no good in belief without endurance.
Source: en.shafaqna.com